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Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net loss $ (2,566) $ (5,461)
Adjustments to reconcile net loss to net cash used    
Depreciation and amortization 139 84
Equity compensation 1,038 5,294
Bad debt expense 13
Forgiveness of unsecured promissory note (10)
Changes in assets and liabilities:    
Increase in accounts receivable (279) (1,287)
Decrease (increase) in other current assets 107 (871)
(Decrease) increase in accounts payable and accrued expenses (497) 1,042
Increase in deferred revenue 507 134
Net cash used in operating activities (1,538) (1,075)
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchases of property and equipment (156) (182)
Net cash used in investing activities (156) (182)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Return of repayment on unsecured promissory note 10
Net proceeds from issuance of common stock from exercise of stock options 46
Proceeds from issuance of common stock from exercise of warrants 20
Net cash provided by financing activities 76
Net decrease in cash (1,694) (1,181)
CASH, beginning of period 13,651 13,121
CASH, end of period 11,957 11,940
Supplemental disclosure of noncash investing and financing activities:    
Reclassification of stock option awards $ 1,411